Lisle 24550 Computer Safe Circuit Tester
Computer Safe Circuit Tester #24550. Lisle Corporation. Safe for automotive computers.
Lisle 20610 Inline Spark Tester
Inline Spark Tester #20610. Lisle Corporation. Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire. With the engine running, the tool flashes a mirror image of ignition spark.